pnpm add -D @ffmpeg-installer/ffmpeg @ffprobe-installer/ffprobe fluent-ffmpeg

import ffmpegPath from '@ffmpeg-installer/ffmpeg' // 安装 ffmpeg 的二进制文件
import ffprobePath from '@ffprobe-installer/ffprobe' // 安装 ffprobe 的二进制文件
import ffmpeg from 'fluent-ffmpeg' // 一个封装了 ffmpeg API 的库，当然可以选择不安装，直接使用字符串拼接的方式调用

ffmpeg.setFfmpegPath(ffmpegPath.path)
ffmpeg.setFfprobePath(ffprobePath.path)

export default class FFmpeg {
  ffmpeg: ffmpeg.FfmpegCommand

  constructor(inputPath: string) {
    this.ffmpeg = ffmpeg(inputPath)
  }
}

import ffmpegPath from '@ffmpeg-installer/ffmpeg' 
import ffprobePath from '@ffprobe-installer/ffprobe'
import ffmpeg from 'fluent-ffmpeg' 

ffmpeg.setFfmpegPath(ffmpegPath.path.replace('app.asar', 'app.asar.unpacked')) // 修改
ffmpeg.setFfprobePath(ffprobePath.path.replace('app.asar', 'app.asar.unpacked')) // 修改
export default class FFmpeg {
  ffmpeg: ffmpeg.FfmpegCommand

  constructor(inputPath: string) {
    this.ffmpeg = ffmpeg(inputPath)
  }
}

{
  "name": "@ffmpeg-installer/ffmpeg",
  "optionalDependencies": {
    "@ffmpeg-installer/darwin-arm64": "4.1.5",
    "@ffmpeg-installer/darwin-x64": "4.1.0",
    "@ffmpeg-installer/linux-arm": "4.1.3",
    "@ffmpeg-installer/linux-arm64": "4.1.4",
    "@ffmpeg-installer/linux-ia32": "4.1.0",
    "@ffmpeg-installer/linux-x64": "4.1.0",
    "@ffmpeg-installer/win32-ia32": "4.1.0",
    "@ffmpeg-installer/win32-x64": "4.1.0"
  }
}

{
  "name": "@ffmpeg-installer/darwin-x64",
  "os": [
    "darwin"
  ],
  "cpu": [
    "x64"
  ],
}

/* eslint-disable no-console */
import { exec } from 'node:child_process'
import os from 'node:os'

const platform = os.platform()

if (platform === 'darwin') {
  console.log('Detected macOS, installing darwin dependencies...')
  // 为了在 macos arm64 架构下进行打包 x64 架构的 APP, 所以需要同时安装 x64 arm64 架构的 ffmpeg 和 ffprobe
  exec(
    'pnpm i @ffmpeg-installer/darwin-x64@^4.1.0 @ffprobe-installer/darwin-x64@^5.1.0 @ffmpeg-installer/darwin-arm64@^4.1.5 @ffprobe-installer/darwin-arm64@^5.0.1 -D',
    (err, stdout, stderr) => {
      if (err) {
        console.error(`Error installing optional dependencies: ${stderr}`)
        throw new Error('Error installing optional dependencies')
      } else {
        console.log(`Optional dependencies installed: ${stdout}`)
      }
    },
  )
} else {
  console.log('Non-macOS platform detected, skipping optional darwin installation.')
}

/* eslint-disable no-console */
import fs from 'node:fs'
import path from 'node:path'

export default async function cleanDeps(context) {
  const { packager, arch, appOutDir } = context
  const platform = packager.platform.nodeName
  if (platform !== 'darwin') {
    return
  }
  const archMap = {
    1: 'x64',
    3: 'arm64',
  }
  const currentArch = archMap[arch]

  if (!currentArch) {
    return
  }

  const unpackedPath = path.resolve(
    appOutDir,
    'Marchen.app',
    'Contents',
    'Resources',
    'app.asar.unpacked',
    'node_modules',
  )
  if (!fs.existsSync(unpackedPath)) {
    return
  }

  const ffmpegPath = path.resolve(unpackedPath, '@ffmpeg-installer')
  const ffprobePath = path.resolve(unpackedPath, '@ffprobe-installer')

  if (!fs.existsSync(ffmpegPath) || !fs.existsSync(ffprobePath)) {
    return
  }

  const removeUnusedArch = (basePath, unusedArch) => {
    const unusedPath = path.resolve(basePath, `darwin-${unusedArch}`)
    if (fs.existsSync(unusedPath)) {
      fs.rmSync(unusedPath, { recursive: true })
    }
  }

  if (currentArch === 'x64') {
    removeUnusedArch(ffmpegPath, 'arm64')
    removeUnusedArch(ffprobePath, 'arm64')
  } else if (currentArch === 'arm64') {
    removeUnusedArch(ffmpegPath, 'x64')
    removeUnusedArch(ffprobePath, 'x64')
  }
  console.log('Cleaned unused arch dependencies.')
}